How to Add a Custom URL to WordPress with Rewrite Rules How to add a custom /my-pages/param1.json URL to Wordpress using add_write_rule and add_query_var.
How to Show a Debug Message in WordPress Displaying debug, warning, error, and notice messages in Wordpress.
Get a Term's Children in WordPress How to use get_term_children and get_terms from Wordpress's PHP API to get a taxonomy term's descendants.
How to Make WordPress Search Only Titles of Posts Instead of Their Whole Content [Worpress PHP Tutorial] How to customize the default Wordpress search functionality when searching for posts publicly, links in the editor, or in the admin area.